Champion-in-chief

If you understand your company's sweet spot DNA, have a strong brand, are closely in touch with consumers, and have great champions-in-chief you can turn adversity into triumph.

Source: wiktionary

I am Rustam, champion-in-chief of the Arabs and Ajams.

Source: wiktionary

Gaines delivers a charismatic star turn in a role that normally takes a back seat to Evita and Che. His proud, noble Perón is a man of the world, and his rich, deep, stirring baritone vocals enrich even the role’s sometimes mundane musical material, giving sumptuous musical voice to Evita’s champion-in-chief.

Source: wiktionary